Incident impact assessment is the post-incident activity performed by Cairo in this scenario. Incident impact assessment is a post-incident activity that involves determining all types of losses caused by the incident by identifying and evaluating all affected devices, networks, applications, and software. Incident impact assessment can include measuring financial losses, reputational damages, operational disruptions, legal liabilities, or regulatory penalties1. Reference: Incident Impact Assessment

Containment is the IH&R step performed by Warren in the above scenario. IH&R (Incident Handling and Response) is a process that involves identifying, analyzing, containing, eradicating, recovering from, and reporting on security incidents that affect an organization's network or system. Containment is the IH&R step that involves implementing appropriate measures to stop the infection from spreading to other organizational assets and to prevent further damage to the organization . Containment can be done by isolating the affected system or network, blocking malicious traffic or communication, disabling or removing malicious accounts or processes, etc. Recovery is the IH&R step that involves restoring the normal operation of the system or network after eradicating the incident. Eradication is the IH&R step that involves removing all traces of the incident from the system or network, such as malware, backdoors, compromised files, etc. Incident triage is the IH&R step that involves prioritizing incidents based on their severity, impact, and urgency.

/var/log/boot.log is the Linux log file accessed by Nancy in the above scenario. Linux is an open-source operating system that logs various events and activities on the system or network. Linux log files are stored in the /var/log directory, which contains different types of log files for different purposes. /var/log/boot.log is the type of log file that records events related to the booting process of the Linux system, such as loading drivers, services, modules, etc. /var/log/boot.log can help identify issues related to unexpected shutdowns and restarts on a Linux machine . /var/log/secure is the type of log file that records events related to security and authentication, such as logins, logouts, password changes, sudo commands, etc. /var/log/kern.log is the type of log file that records events related to the kernel, such as kernel messages, errors, warnings, etc. /var/log/lighttpd/ is the directory that contains log files related to the lighttpd web server, such as access logs, error logs, etc.

The IP address of the attacker is 10.10.1.16. This can be verified by analyzing the Windows.events.evtx file using a tool such as Event Viewer or Log Parser. The file contains several Audit Failure logs with event ID 4625, which indicate failed logon attempts to the system. The logs show that the source network address of the failed logon attempts is 10.10.1.16, which is the IP address of the attacker3. The screenshot below shows an example of viewing one of the logs using Event Viewer4: Reference: Audit Failure Log, [Windows.events.evtx], [Screenshot of Event Viewer showing Audit Failure log]